reexec: mark us as initialized when calling initializers
reexec: mark us as initialized when calling initializers

In cases where one of our initializers needs to itself use reexec, they
shouldn't panic().

Signed-off-by: Nalin Dahyabhai <f562fcb2a0b898bf0be1afc867ea92325d8f825f@redhat.com>

containers/storage,containers/storage,containers/storage